12211002020 has 48 divisors (see below), whose sum is σ = 29314992000. Its totient is φ = 4185402624.

The previous prime is 12211002019. The next prime is 12211002053. The reversal of 12211002020 is 2020011221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12211001992 and 12211002010.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 557231 + ... + 578729.

It is an arithmetic number, because the mean of its divisors is an integer number (610729000).

Almost surely, 2^12211002020 is an apocalyptic number.

12211002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12211002020 is an abundant number, since it is smaller than the sum of its proper divisors (17103989980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12211002020 is a wasteful number, since it uses less digits than its factorization.

12211002020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25572 (or 25570 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12211002020 its reverse (2020011221), we get a palindrome (14231013241).

The spelling of 12211002020 in words is "twelve billion, two hundred eleven million, two thousand, twenty".